Victoria Azarenka of Belarus serves in her second round match against Eleni Daniilidou of Greece during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Victoria Azarenka of Belarus serves in her second round match against Eleni Daniilidou of Greece during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Photo: Quinn Rooney, Getty Images

Victoria Azarenka of Belarus serves in her second round match... Photo-4050526.55117 - Times Union

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Tennis fans cool off in front of mister fans during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. Temperatures in Melbourne are expected to reach nearly 40 degrees celsius (104 F) today. less

Tennis fans cool off in front of mister fans during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. Temperatures in Melbourne are expected to reach nearly 40 ... more

Photo: Lucas Dawson, Getty Images

Tennis fans cool off in front of mister fans during day four of the... Photo-4050539.55117 - Times Union

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Andy Murray of Great Britain signs an autograph after winning his second round match against Joao Sousa of Portugal during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

Andy Murray of Great Britain signs an autograph after winning his second round match against Joao Sousa of Portugal during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in ... more

Photo: Julian Finney, Getty Images

Andy Murray of Great Britain signs an autograph after winning his... Photo-4050540.55117 - Times Union

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Andy Murray of Great Britain throws his wristband into the crowd after winning his second round match against Joao Sousa of Portugal during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

Andy Murray of Great Britain throws his wristband into the crowd after winning his second round match against Joao Sousa of Portugal during day four of the 2013 Australian Open at Melbourne Park on January 17, ... more

Photo: Julian Finney, Getty Images

Andy Murray of Great Britain throws his wristband into the crowd... Photo-4050542.55117 - Times Union

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Maria Kirilenko of Russia plays a backhand in her second round match against Shuai Peng of China during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Maria Kirilenko of Russia plays a backhand in her second round match against Shuai Peng of China during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Photo: Ryan Pierse, Getty Images

Maria Kirilenko of Russia plays a backhand in her second round... Photo-4050528.55117 - Times Union

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Maria Kirilenko of Russia serves in her second round match against Shuai Peng of China during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Maria Kirilenko of Russia serves in her second round match against Shuai Peng of China during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Photo: Ryan Pierse, Getty Images

Maria Kirilenko of Russia serves in her second round match against... Photo-4050529.55117 - Times Union

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Serena Williams of the United States of America celebrates winning a point in her second round match against Garbine Muguruza of Spain during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

Serena Williams of the United States of America celebrates winning a point in her second round match against Garbine Muguruza of Spain during day four of the 2013 Australian Open at Melbourne Park on January ... more

Photo: Lucas Dawson, Getty Images

Serena Williams of the United States of America celebrates winning... Photo-4050532.55117 - Times Union

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Serena Williams of the United States of America celebrates winning her second round match against Garbine Muguruza of Spain during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

Serena Williams of the United States of America celebrates winning her second round match against Garbine Muguruza of Spain during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in ... more

Photo: Quinn Rooney, Getty Images

Serena Williams of the United States of America celebrates winning... Photo-4050537.55117 - Times Union

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Gael Monfils of France prepares to return serve in his second round match against Yen-Hsun Lu of Chinese Taipei during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

Gael Monfils of France prepares to return serve in his second round match against Yen-Hsun Lu of Chinese Taipei during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, ... more

Photo: Cameron Spencer, Getty Images

Gael Monfils of France prepares to return serve in his second round... Photo-4050543.55117 - Times Union

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Fans attempt to cool off during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. Temperatures in Melbourne are expected to reach nearly 40 degrees celsius (104 F) today. less

Fans attempt to cool off during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. Temperatures in Melbourne are expected to reach nearly 40 degrees celsius (104 ... more

Photo: Ryan Pierse, Getty Images

Fans attempt to cool off during day four of the 2013 Australian... Photo-4050548.55117 - Times Union

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Benjamin Becker of Germany plays a backhand in his second round match against Juan Martin Del Potro of Argentina during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

Benjamin Becker of Germany plays a backhand in his second round match against Juan Martin Del Potro of Argentina during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, ... more

Photo: Cameron Spencer, Getty Images

Benjamin Becker of Germany plays a backhand in his second round... Photo-4050549.55117 - Times Union

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Laura Robson of Great Britain (L) celebrates her win in her second round match against Petra Kvitova of Czech Republic during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

Laura Robson of Great Britain (L) celebrates her win in her second round match against Petra Kvitova of Czech Republic during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in ... more

Photo: Michael Dodge, Getty Images

Laura Robson of Great Britain (L) celebrates her win in her second... Photo-4050552.55117 - Times Union

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Eleni Daniilidou of Greece plays a backhand in her second round match against Victoria Azarenka of Belarus during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

Eleni Daniilidou of Greece plays a backhand in her second round match against Victoria Azarenka of Belarus during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, ... more

Photo: Michael Dodge, Getty Images

Eleni Daniilidou of Greece plays a backhand in her second round... Photo-4050531.55117 - Times Union

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Shuai Peng of China plays a forehand in her second round match against Maria Kirilenko of Russia during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Shuai Peng of China plays a forehand in her second round match against Maria Kirilenko of Russia during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Photo: Ryan Pierse, Getty Images

Shuai Peng of China plays a forehand in her second round match... Photo-4050536.55117 - Times Union

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Caroline Wozniacki of Denmark serves in her second round match against Donna Vekic of Croatia during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Caroline Wozniacki of Denmark serves in her second round match against Donna Vekic of Croatia during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia.

Photo: Scott Barbour, Getty Images

Caroline Wozniacki of Denmark serves in her second round match... Photo-4050545.55117 - Times Union

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Caroline Wozniacki of Denmark shakes hands with Donna Vekic of Croatia after winning their second round match during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

Caroline Wozniacki of Denmark shakes hands with Donna Vekic of Croatia after winning their second round match during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, ... more

A general view of Rod Laver Arena during the second round match between Nikolay Davydenko of Russia and Roger Federer of Switzerland during day four of the 2013 Australian Open at Melbourne Park on January 17, 2013 in Melbourne, Australia. less

A general view of Rod Laver Arena during the second round match between Nikolay Davydenko of Russia and Roger Federer of Switzerland during day four of the 2013 Australian Open at Melbourne Park on January 17, ... more

Photo: Julian Finney, Getty Images

A general view of Rod Laver Arena during the second round match... Photo-4050551.55117 - Times Union

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Andy Murray of Great Britain plays a forehand in his first round match against Robin Haase of the Netherlands during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia. less

Andy Murray of Great Britain plays a forehand in his first round match against Robin Haase of the Netherlands during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, ... more

Photo: Quinn Rooney, Getty Images

Andy Murray of Great Britain plays a forehand in his first round... Photo-4050471.55117 - Times Union

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Jo-Wilfried Tsonga of France plays a backhand in his first round match against Michael Llodra of France during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Jo-Wilfried Tsonga of France plays a backhand in his first round match against Michael Llodra of France during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Photo: Michael Dodge, Getty Images

Jo-Wilfried Tsonga of France plays a backhand in his first round... Photo-4050482.55117 - Times Union

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Yanina Wickmayer of Belgium celebrates winning a point in her first round match against Jarmila Gajdosova of Australia during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia. less

Yanina Wickmayer of Belgium celebrates winning a point in her first round match against Jarmila Gajdosova of Australia during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in ... more

Photo: Quinn Rooney, Getty Images

Yanina Wickmayer of Belgium celebrates winning a point in her first... Photo-4050489.55117 - Times Union

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Andy Murray of Great Britain serves in his first round match against Robin Haase of the Netherlands during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Andy Murray of Great Britain serves in his first round match against Robin Haase of the Netherlands during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Photo: Cameron Spencer, Getty Images

Andy Murray of Great Britain serves in his first round match... Photo-4050473.55117 - Times Union

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Serena Williams of the United States falls onto the court injuring her ankle in her first round match against Edina Gallovits-Hall of Romania during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia. less

Serena Williams of the United States falls onto the court injuring her ankle in her first round match against Edina Gallovits-Hall of Romania during day two of the 2013 Australian Open at Melbourne Park on ... more

Photo: Robert Prezioso, Getty Images

Serena Williams of the United States falls onto the court injuring... Photo-4050475.55117 - Times Union

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Serena Williams of the United States serves in her first round match against Edina Gallovits-Hall of Romania during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia. less

Serena Williams of the United States serves in her first round match against Edina Gallovits-Hall of Romania during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, ... more

Photo: Michael Dodge, Getty Images

Serena Williams of the United States serves in her first round... Photo-4050476.55117 - Times Union

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Serena Williams of the United States looks on in her first round match against Edina Gallovits-Hall of Romania during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia. less

Serena Williams of the United States looks on in her first round match against Edina Gallovits-Hall of Romania during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, ... more

Photo: Ryan Pierse, Getty Images

Serena Williams of the United States looks on in her first round... Photo-4050477.55117 - Times Union

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Victoria Azarenka of Belarus signs autographs for fans after winning her first round match against Monica Niculescu of Romania during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia. less

Victoria Azarenka of Belarus signs autographs for fans after winning her first round match against Monica Niculescu of Romania during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in ... more

Juan Martin Del Potro of Argentina serves in his first round match against Adrian Mannarino of France during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Juan Martin Del Potro of Argentina serves in his first round match against Adrian Mannarino of France during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Photo: Michael Dodge, Getty Images

Juan Martin Del Potro of Argentina serves in his first round match... Photo-4050486.55117 - Times Union

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Nicolas Almagro of Spain hands a towel to a ball boy in his second round match against Daniel Gimeno-Traver of Spain during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, Australia. less

Nicolas Almagro of Spain hands a towel to a ball boy in his second round match against Daniel Gimeno-Traver of Spain during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in ... more

Photo: Cameron Spencer, Getty Images

Nicolas Almagro of Spain hands a towel to a ball boy in his second... Photo-4050499.55117 - Times Union

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Tatsuma Ito of Japan serves in his second round match against Marcos Baghdatis of Cyprus during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, Australia.

Tatsuma Ito of Japan serves in his second round match against Marcos Baghdatis of Cyprus during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, Australia.

Photo: Quinn Rooney, Getty Images

Tatsuma Ito of Japan serves in his second round match against... Photo-4050505.55117 - Times Union

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Maria Sharapova of Russia plays a backhand in her second round match against Misaki Doi of Japan during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, Australia.

Maria Sharapova of Russia plays a backhand in her second round match against Misaki Doi of Japan during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, Australia.

Photo: Quinn Rooney, Getty Images

Maria Sharapova of Russia plays a backhand in her second round... Photo-4050516.55117 - Times Union

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Venus Williams of the United States plays a forehand in her second round match against Alize Cornet of France during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, Australia. less

Venus Williams of the United States plays a forehand in her second round match against Alize Cornet of France during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, ... more

Photo: Julian Finney, Getty Images

Venus Williams of the United States plays a forehand in her second... Photo-4050521.55117 - Times Union

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Daniel Gimeno-Traver of Spain plays a backhand in his second round match against Nicolas Almagro of Spain during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, Australia. less

Daniel Gimeno-Traver of Spain plays a backhand in his second round match against Nicolas Almagro of Spain during day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, ... more

Photo: Cameron Spencer, Getty Images

Daniel Gimeno-Traver of Spain plays a backhand in his second round... Photo-4050493.55117 - Times Union

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Janko Tipsarevic of Serbia celebrates winning his first round match against Lleyton Hewitt of Australia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Janko Tipsarevic of Serbia celebrates winning his first round match against Lleyton Hewitt of Australia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Maria Sharapova of Russia signs autographs after winning her first round match against Olga Puchkova of Russia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Maria Sharapova of Russia signs autographs after winning her first round match against Olga Puchkova of Russia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, ... more

Venus Williams of the United States plays a forehand in her first round match against Galina Voskoboeva of Kazakhstan during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Venus Williams of the United States plays a forehand in her first round match against Galina Voskoboeva of Kazakhstan during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in ... more

Photo: Mark Kolbe, Getty Images

Venus Williams of the United States plays a forehand in her first... Photo-4050444.55117 - Times Union

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Julia Georges of Germany celebrates in her first round match against Vera Dushevina of Russia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Julia Georges of Germany celebrates in her first round match against Vera Dushevina of Russia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Photo: Cameron Spencer, Getty Images

Julia Georges of Germany celebrates in her first round match... Photo-4050447.55117 - Times Union

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Venus Williams of the United States looks on as a moth sits on her neck in her first round match against Galina Voskoboeva of Kazakhstan during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Venus Williams of the United States looks on as a moth sits on her neck in her first round match against Galina Voskoboeva of Kazakhstan during day one of the 2013 Australian Open at Melbourne Park on January ... more

Photo: Vince Caligiuri, Getty Images

Venus Williams of the United States looks on as a moth sits on her... Photo-4050448.55117 - Times Union

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Fans lie across seats in the stands to watch the men's first round match between David Goffin of Belgium and Fernando Verdasco of Spain during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Fans lie across seats in the stands to watch the men's first round match between David Goffin of Belgium and Fernando Verdasco of Spain during day one of the 2013 Australian Open at Melbourne Park on January ... more

Photo: Julian Finney, Getty Images

Fans lie across seats in the stands to watch the men's first... Photo-4050454.55117 - Times Union

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Angelique Kerber of Germany signs autographs for fans after winning her first round match against Elina Svitolina of the Ukraine during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Angelique Kerber of Germany signs autographs for fans after winning her first round match against Elina Svitolina of the Ukraine during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 ... more

Casey Dellacqua of Australia serves in her first round match against Madison Keys of the United States during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Casey Dellacqua of Australia serves in her first round match against Madison Keys of the United States during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Photo: Quinn Rooney, Getty Images

Casey Dellacqua of Australia serves in her first round match... Photo-4050465.55117 - Times Union

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Leonardo Mayer of Argentina plays a shot through his legs during his first round match against Bernard Tomic of Australia during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia. less

Leonardo Mayer of Argentina plays a shot through his legs during his first round match against Bernard Tomic of Australia during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in ... more

Photo: Cameron Spencer, Getty Images

Leonardo Mayer of Argentina plays a shot through his legs during... Photo-4050487.55117 - Times Union

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A general view during the women's first round match between Jarmila Gajdosova of Australia and Yanina Wickmayer of Belgium during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia. less

A general view during the women's first round match between Jarmila Gajdosova of Australia and Yanina Wickmayer of Belgium during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in ... more

Photo: Cameron Spencer, Getty Images

A general view during the women's first round match between... Photo-4050488.55117 - Times Union

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Jo-Wilfried Tsonga of France serves in his first round match against Michael Llodra of France during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Jo-Wilfried Tsonga of France serves in his first round match against Michael Llodra of France during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Photo: Michael Dodge, Getty Images

Jo-Wilfried Tsonga of France serves in his first round match... Photo-4050479.55117 - Times Union

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Jo-Wilfried Tsonga of France plays a forehand in his first round match against Michael Llodra of France during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Jo-Wilfried Tsonga of France plays a forehand in his first round match against Michael Llodra of France during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Photo: Lucas Dawson, Getty Images

Jo-Wilfried Tsonga of France plays a forehand in his first round... Photo-4050483.55117 - Times Union

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Daria Gavrilova of Russia plays a backhand in her first round match against Lauren Davis of the United States during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia. less

Daria Gavrilova of Russia plays a backhand in her first round match against Lauren Davis of the United States during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, ... more

Photo: Julian Finney, Getty Images

Daria Gavrilova of Russia plays a backhand in her first round match... Photo-4050484.55117 - Times Union

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Andy Murray of Great Britain serves in his first round match against Robin Haase of the Netherlands during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Andy Murray of Great Britain serves in his first round match against Robin Haase of the Netherlands during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Photo: Cameron Spencer, Getty Images

Andy Murray of Great Britain serves in his first round match... Photo-4050470.55117 - Times Union

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A general view of Melbourne Park during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

A general view of Melbourne Park during day two of the 2013 Australian Open at Melbourne Park on January 15, 2013 in Melbourne, Australia.

Photo: Marianna Massey, Getty Images

A general view of Melbourne Park during day two of the 2013... Photo-4050491.55117 - Times Union

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Fans cool off in the mister fans on day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, Australia.

Fans cool off in the mister fans on day three of the 2013 Australian Open at Melbourne Park on January 16, 2013 in Melbourne, Australia.

Photo: Marianna Massey, Getty Images

Fans cool off in the mister fans on day three of the 2013... Photo-4050522.55117 - Times Union

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Lleyton Hewitt of Australia leaves the court after losing his first round match against Janko Tipsarevic of Serbia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Lleyton Hewitt of Australia leaves the court after losing his first round match against Janko Tipsarevic of Serbia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, ... more

Photo: Marianna Massey, Getty Images

Lleyton Hewitt of Australia leaves the court after losing his first... Photo-4050467.55117 - Times Union

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Maria Sharapova of Russia plays a forehand in her first round match against Olga Puchkova of Russia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Maria Sharapova of Russia plays a forehand in her first round match against Olga Puchkova of Russia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Photo: Ryan Pierse, Getty Images

Maria Sharapova of Russia plays a forehand in her first round match... Photo-4050442.55117 - Times Union

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Maria Sharapova of Russia serves in her first round match against Olga Puchkova of Russia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Maria Sharapova of Russia serves in her first round match against Olga Puchkova of Russia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Photo: Ryan Pierse, Getty Images

Maria Sharapova of Russia serves in her first round match against... Photo-4050446.55117 - Times Union

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Samantha Stosur of Australia serves during her first round match against Kai-Chen Chang of Chinese Taipei during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Samantha Stosur of Australia serves during her first round match against Kai-Chen Chang of Chinese Taipei during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, ... more

Photo: Scott Barbour, Getty Images

Samantha Stosur of Australia serves during her first round match... Photo-4050450.55117 - Times Union

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A general view of Margaret Court Arena during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

A general view of Margaret Court Arena during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Photo: Scott Barbour, Getty Images

A general view of Margaret Court Arena during day one of the 2013... Photo-4050451.55117 - Times Union

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A general view of Rod Laver Arena during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

A general view of Rod Laver Arena during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Photo: Michael Dodge, Getty Images

A general view of Rod Laver Arena during day one of the 2013... Photo-4050456.55117 - Times Union

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Dominika Cibulkova of Slovakia plays a forehand in her first round match against Ashleigh Barty of Australia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Dominika Cibulkova of Slovakia plays a forehand in her first round match against Ashleigh Barty of Australia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, ... more

Photo: Julian Finney, Getty Images

Dominika Cibulkova of Slovakia plays a forehand in her first round... Photo-4050457.55117 - Times Union

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Dominika Cibulkova of Slovakia serves in her first round match against Ashleigh Barty of Australia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Dominika Cibulkova of Slovakia serves in her first round match against Ashleigh Barty of Australia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Photo: Julian Finney, Getty Images

Dominika Cibulkova of Slovakia serves in her first round match... Photo-4050459.55117 - Times Union

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Heather Watson of Great Britain celebrates a point in her first round match against Alexandra Cadantu of Romania during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Heather Watson of Great Britain celebrates a point in her first round match against Alexandra Cadantu of Romania during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, ... more

Photo: Julian Finney, Getty Images

Heather Watson of Great Britain celebrates a point in her first... Photo-4050462.55117 - Times Union

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An Australian Open tennis ball is seen during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

An Australian Open tennis ball is seen during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Photo: Lucas Dawson, Getty Images

An Australian Open tennis ball is seen during day one of the 2013... Photo-4050449.55117 - Times Union

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Agnieszka Radwanska of Poland signs autographs for fans after winning her first round match against Bojana Bobusic of Australia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia. less

Agnieszka Radwanska of Poland signs autographs for fans after winning her first round match against Bojana Bobusic of Australia during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 ... more

Novak Djokovic of Serbia plays a forehand in his first round match against Paul-Henri Mathieu of France during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Novak Djokovic of Serbia plays a forehand in his first round match against Paul-Henri Mathieu of France during day one of the 2013 Australian Open at Melbourne Park on January 14, 2013 in Melbourne, Australia.

Photo: Ryan Pierse, Getty Images

Novak Djokovic of Serbia plays a forehand in his first round match... Photo-4050455.55117 - Times Union